Simultaneous direct sum decompositions of several multivariate polynomials.

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Title: Simultaneous direct sum decompositions of several multivariate polynomials.
Authors: Fang, Lishan1 (AUTHOR) fanglishan@hqu.edu.cn, Huang, Hua-Lin1 (AUTHOR) hualin.huang@hqu.edu.cn, Liao, Lili1 (AUTHOR) lili.liao@hqu.edu.cn
Source: Linear Algebra & its Applications. Nov2025, Vol. 724, p320-335. 16p.
Subjects: Homogeneous polynomials, Orthogonalization, Set theory, Idempotents, Polynomials
Abstract: We consider the problem of simultaneous direct sum decomposition of a set of multivariate polynomials. To this end, we extend Harrison's center theory for a single homogeneous polynomial to this broader setting. It is shown that the center of a set of polynomials is a special Jordan algebra, and simultaneous direct sum decompositions of the given polynomials are in bijection with complete sets of orthogonal idempotents of their center algebra. Several examples are provided to illustrate the performance of this method. • Extend Harrison's center theory to a set of multivariate polynomials. • Discover the connection between simultaneous direct sum decompositions and centers. • Provide an algorithm for simultaneously decomposing multivariate polynomials. [ABSTRACT FROM AUTHOR]
Copyright of Linear Algebra & its Applications is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Simultaneous direct sum decompositions of several multivariate polynomials.
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  Data: <searchLink fieldCode="JN" term="%22Linear+Algebra+%26+its+Applications%22">Linear Algebra & its Applications</searchLink>. Nov2025, Vol. 724, p320-335. 16p.
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  Data: <searchLink fieldCode="DE" term="%22Homogeneous+polynomials%22">Homogeneous polynomials</searchLink><br /><searchLink fieldCode="DE" term="%22Orthogonalization%22">Orthogonalization</searchLink><br /><searchLink fieldCode="DE" term="%22Set+theory%22">Set theory</searchLink><br /><searchLink fieldCode="DE" term="%22Idempotents%22">Idempotents</searchLink><br /><searchLink fieldCode="DE" term="%22Polynomials%22">Polynomials</searchLink>
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  Data: We consider the problem of simultaneous direct sum decomposition of a set of multivariate polynomials. To this end, we extend Harrison's center theory for a single homogeneous polynomial to this broader setting. It is shown that the center of a set of polynomials is a special Jordan algebra, and simultaneous direct sum decompositions of the given polynomials are in bijection with complete sets of orthogonal idempotents of their center algebra. Several examples are provided to illustrate the performance of this method. • Extend Harrison's center theory to a set of multivariate polynomials. • Discover the connection between simultaneous direct sum decompositions and centers. • Provide an algorithm for simultaneously decomposing multivariate polynomials. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Linear Algebra & its Applications is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.laa.2025.06.022
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 16
        StartPage: 320
    Subjects:
      – SubjectFull: Homogeneous polynomials
        Type: general
      – SubjectFull: Orthogonalization
        Type: general
      – SubjectFull: Set theory
        Type: general
      – SubjectFull: Idempotents
        Type: general
      – SubjectFull: Polynomials
        Type: general
    Titles:
      – TitleFull: Simultaneous direct sum decompositions of several multivariate polynomials.
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            NameFull: Fang, Lishan
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            NameFull: Huang, Hua-Lin
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            NameFull: Liao, Lili
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          Dates:
            – D: 01
              M: 11
              Text: Nov2025
              Type: published
              Y: 2025
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              Value: 00243795
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            – Type: volume
              Value: 724
          Titles:
            – TitleFull: Linear Algebra & its Applications
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